124 citations · 359 across the 15 of their papers we have counts for
11 papers · 1 filter
AMUSE-antlia I: Nuclear X-ray properties of early-type galaxies in a dynamically young galaxy cluster
Zhensong Hu, Yuanyuan Su, Zhiyuan Li +14
To understand the formation and growth of supermassive black holes (SMBHs) and their co-evolution with host galaxies, it is essential to know the impact of environment on the activ…
Resonant scattering of the OVII X-ray emission line in the circumgalactic medium of TNG50 galaxies
Dylan Nelson, Chris Byrohl, Anna Ogorzalek +15
We study the impact of resonantly scattered X-ray line emission on the observability of the hot circumgalactic medium (CGM) of galaxies. We apply a Monte Carlo radiative transfer p…
Circumgalactic Medium on the Largest Scales: Detecting X-ray Absorption Lines with Large-Area Microcalorimeters
Akos Bogdan, Ildar Khabibullin, Orsolya Kovacs +22
The circumgalactic medium (CGM) plays a crucial role in galaxy evolution as it fuels star formation, retains metals ejected from the galaxies, and hosts gas flows in and out of gal…
Gas sloshing and cold fronts in pre-merging galaxy cluster Abell 98
Arnab Sarkar, Scott Randall, Yuanyuan Su +10
We present deep Chandra observations of the pre-merger galaxy cluster Abell 98. Abell 98 is a complex merging system. While the northern (A98N) and central subclusters (A98S) are m…
Chemical abundances in the outskirts of nearby galaxy groups measured with joint Suzaku and Chandra observations
Arnab Sarkar, Yuanyuan Su, Nhut Truong +5
We report results from deep Suzaku and mostly snapshot Chandra observations of four nearby galaxy groups: MKW4, Antlia, RXJ1159+5531, and ESO3060170. Their peak temperatures vary o…
Discovery of a pre-merger shock in an intercluster filament in Abell 98
Arnab Sarkar, Scott Randall, Yuanyuan Su +11
We report the first unambiguous detection of an axial merger shock in the early-stage merging cluster Abell 98 using deep (227 ks) Chandra observations. The shock is about 420 kpc…
Resilience of Sloshing Cold Fronts against Subsequent Minor Mergers
Iraj Vaezzadeh, Elke Roediger, Claire Cashmore +8
Minor mergers are common in galaxy clusters. They have the potential to create sloshing cold fronts (SCFs) in the intracluster medium (ICM) of the cluster. However, the resilience…
X-ray Constraints on the Hot Gas Content of Early-type Galaxies in Virgo
Meicun Hou, Zhiyuan Li, Christine Jones +2
We present a systematic study of the diffuse hot gas around early-type galaxies (ETGs) residing in the Virgo cluster, based on archival {\it Chandra} observations. Our representati…
A New Class of X-Ray Tails of Early-Type Galaxies and Subclusters in Galaxy Clusters - Slingshot Tails vs Ram Pressure Stripped Tails
Alex Sheardown, Thomas M. Fish, Elke Roediger +11
We show that there is a new class of gas tails - slingshot tails - which form as a subhalo (i.e. a subcluster or early-type cluster galaxy) moves away from the cluster center towar…
A Galaxy-Scale Fountain of Cold Molecular Gas Pumped by a Black Hole
Grant R. Tremblay, Françoise Combes, J. B. Raymond Oonk +36
We present ALMA and MUSE observations of the Brightest Cluster Galaxy in Abell 2597, a nearby (z=0.0821) cool core cluster of galaxies. The data map the kinematics of a three billi…
Uplift, feedback and buoyancy: radio lobe dynamics in NGC 4472
M. Gendron-Marsolais, R. P. Kraft, A. Bogdan +7
We present results from deep (380 ks) \textit{Chandra} observations of the AGN outburst in the massive early-type galaxy NGC 4472. We detect cavities in the gas coincident with the…